延伸与提升 阅读理解。 Mark frowned(皱眉头).His sister Trina was getting a lot of gifts for her first birthday.She got lots of attention. Grandparents were here for the party.What about him?No one cared what he was doing.“Fine!”he thought,.“If no one cares,then I can do what I want."He got up and broke a balloon(气球)with a fork(叉子).POP! “Mark,stop that,,”Mom said quickly. Grandpa took him to the kitchen."Sit down,"he said. 导航页导航页 延伸与提升 阅读理解。 Mark frowned (皱眉头). His sister Trina was getting a lot of gifts for her first birthday. She got lots of attention. Grandparents were here for the party. What about him? No one cared what he was doing. “Fine!” he thought, “If no one cares, then I can do what I want.” He got up and broke a balloon (气球) with a fork (叉子). POP! “Mark, stop that,” Mom said quickly. Grandpa took him to the kitchen. “Sit down,” he said